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  • Question
  • Which one is not metal


  • Options
  • A. sulpher
  • B. sugar
  • C. nitogen
  • D. all of these

  • Correct Answer
  • all of these 


  • Chemistry problems


    Search Results


    • 1. The enzyme that converts glucose to ethyl alcohol is

    • Options
    • A. Maltase
    • B. Zymase
    • C. Diastase
    • D. Invertase
    • Discuss
    • 2. The M.K.S. system was first introduced by

    • Options
    • A. archimedes
    • B. Eienstein
    • C. Newton
    • D. Giorgi
    • Discuss
    • 3. Cobalt - 60 is commonly used in radiation therapy because it emits

    • Options
    • A. alpha - rays
    • B. beta rays
    • C. gamma rays
    • D. X - rays
    • Discuss
    • 4. A ?breath test? used by traffic police to check drunken driving uses ____?

    • Options
    • A. Turmeric on filter paper
    • B. Silica gel coated with silver nitrate
    • C. potassium permanganate-sulphuric acid
    • D. Potassium dichromatic-sulphuric acid
    • Discuss
    • 5. The electrochemical cell stops working after some time because ________

    • Options
    • A. Electrode potential of both the electrodes becomes zero
    • B. One of electrodes completely vanishes
    • C. Electrode potential of both electrodes equalizes
    • D. The reaction reverses its direction
    • Discuss
    • 6. Among the following the maximum covalent character is shown by the compound (1) MgCl2 (2) FeCl2 (3) SnCl2 (4) AlCl3

    • Options
    • A. Option 1
    • B. Option 2
    • C. Option 3
    • D. Option 4
    • Discuss
    • 7. A radioactive substance has a half life of four months, three-fourth of the substance would decay in

    • Options
    • A. 3 months
    • B. 4 months
    • C. 8 months
    • D. 12 months
    • Discuss
    • 8. The isotopes of chlorine with mass number 35 and 37 exist in the ratio of

    • Options
    • A. 1:2
    • B. 2:3
    • C. 3:1
    • D. 3:4
    • Discuss
    • 9. Which one is the pure element

    • Options
    • A. glass
    • B. cement
    • C. sodium
    • D. None of these
    • Discuss
    • 10. A mixture of sand and naphthalene can be separated by

    • Options
    • A. Fractional distillation
    • B. Sublimation
    • C. Chromatography
    • D. Any of them
    • Discuss


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